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120221010105 = 3571144962001
BaseRepresentation
bin110111111110110111…
…0110000100010111001
3102111022102001002100220
41233331232300202321
53432203034310410
6131121225250253
711454121503510
oct1577556604271
9374272032326
10120221010105
1146a926982a9
121b371933989
13b44bc19791
145b66837677
1531d95b0070
hex1bfdbb08b9

120221010105 has 16 divisors (see below), whose sum is σ = 219832704384. Its totient is φ = 54958176000.

The previous prime is 120221010083. The next prime is 120221010127. The reversal of 120221010105 is 501010122021.

It is an interprime number because it is at equal distance from previous prime (120221010083) and next prime (120221010127).

It is not a de Polignac number, because 120221010105 - 27 = 120221009977 is a prime.

It is a super-2 number, since 2×1202210101052 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572480896 + ... + 572481105.

It is an arithmetic number, because the mean of its divisors is an integer number (13739544024).

Almost surely, 2120221010105 is an apocalyptic number.

120221010105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120221010105 is a deficient number, since it is larger than the sum of its proper divisors (99611694279).

120221010105 is a wasteful number, since it uses less digits than its factorization.

120221010105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144962016.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 120221010105 its reverse (501010122021), we get a palindrome (621231132126).

The spelling of 120221010105 in words is "one hundred twenty billion, two hundred twenty-one million, ten thousand, one hundred five".

Divisors: 1 3 5 7 15 21 35 105 1144962001 3434886003 5724810005 8014734007 17174430015 24044202021 40073670035 120221010105